diff --git a/validator/WORKSPACE b/validator/WORKSPACE
index 2a37f05dbe4e..6c772fbdec9f 100644
--- a/validator/WORKSPACE
+++ b/validator/WORKSPACE
@@ -4,23 +4,23 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
 
 http_archive(
     name = "com_google_absl",
-    sha256 = "c12eb53b95f2b84aa92c82ca87a778370b754fa141561939f3e72e107812e86e",
-    strip_prefix = "abseil-cpp-c9c0fd5185067208e1cc4227d16122571762af39",
-    urls = ["https://github.com/abseil/abseil-cpp/archive/c9c0fd5185067208e1cc4227d16122571762af39.zip"],
+    sha256 = "050071396c0483035c9545daaaf953a47449b971978631db040cd31bcb2d3dde",
+    strip_prefix = "abseil-cpp-fc44fa053cc91193d2bb60fb9356bcecb301242e",
+    urls = ["https://github.com/abseil/abseil-cpp/archive/fc44fa053cc91193d2bb60fb9356bcecb301242e.zip"],
 )
 
 http_archive(
     name = "com_google_googletest",
-    sha256 = "74d6a78f888dcef6773766c01144ada20582af5e2feb319d0e815e1e1274d85d",
-    strip_prefix = "googletest-c875c4e2249ec124c24f72141b3780c22256fd44",
-    urls = ["https://github.com/google/googletest/archive/c875c4e2249ec124c24f72141b3780c22256fd44.zip"],  # 2019-01-07
+    sha256 = "c83f69fa8cb7a503d3ae9f736cf679b0846772b1ae955c63133520b749491a7c",
+    strip_prefix = "googletest-8a6feabf04bec8fb125e0df0ad1195c42350725f",
+    urls = ["https://github.com/google/googletest/archive/8a6feabf04bec8fb125e0df0ad1195c42350725f.zip"],  # 2019-01-07
 )
 
 http_archive(
     name = "com_google_protobuf",
-    sha256 = "3f703847ef2f6b0e9c63a56b9ecc4f05cfc0c2e434555348130f37b03fb9d957",
-    strip_prefix = "protobuf-4812107b9d0fb9fdcca933766c237c38f2150379",
-    urls = ["https://github.com/protocolbuffers/protobuf/archive/4812107b9d0fb9fdcca933766c237c38f2150379.zip"],
+    sha256 = "4a8c64d5836fafd66728c5c044d3af2e93ac8bf87ffb809b9675dc120dc6d718",
+    strip_prefix = "protobuf-f7d6dd15b27deeb7d8c879e49c6919d136ee1cb6",
+    urls = ["https://github.com/protocolbuffers/protobuf/archive/f7d6dd15b27deeb7d8c879e49c6919d136ee1cb6.zip"],
 )
 load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
 protobuf_deps()
@@ -34,17 +34,17 @@ http_archive(
 
 http_archive(
     name = "com_googlesource_code_re2",
-    sha256 = "1e564366a75418c6485309b469e8be54cfd5c118dfae0393f14a52553993a17a",
-    strip_prefix = "re2-960c861764ff54c9a12ff683ba55ccaad1a8f73b",
-    urls = ["https://github.com/google/re2/archive/960c861764ff54c9a12ff683ba55ccaad1a8f73b.zip"],
+    sha256 = "e9e9cd5902c711131825f7dd45dfdb063555171d8d26300b336aace5f97215ef",
+    strip_prefix = "re2-87d09ef4f0307e53f1d3796843f4b90d41cfccaa",
+    urls = ["https://github.com/google/re2/archive/87d09ef4f0307e53f1d3796843f4b90d41cfccaa.zip"],
 )
 
 # rules_cc defines rules for generating C++ code from Protocol Buffers.
 http_archive(
     name = "rules_cc",
-    sha256 = "b0d5c3a44e9ad700ca3ff0e3026c1ac39d42671dd91188f5fc2208b5cc6e290e",
-    strip_prefix = "rules_cc-7771fb57dd4d044aff08c2125d3ba5c8aaeef424",
-    urls = ["https://github.com/bazelbuild/rules_cc/archive/7771fb57dd4d044aff08c2125d3ba5c8aaeef424.zip"],
+    sha256 = "97a7c3f2f601a0d0cc9d26a4173d65e4b7028776a66e2e4fc736e49a5300a483",
+    strip_prefix = "rules_cc-b039a551a7b41b70e426e4a3cd60346c89db9b6c",
+    urls = ["https://github.com/bazelbuild/rules_cc/archive/b039a551a7b41b70e426e4a3cd60346c89db9b6c.zip"],
 )
 load("@rules_cc//cc:repositories.bzl", "rules_cc_dependencies")
 rules_cc_dependencies()
@@ -52,11 +52,11 @@ rules_cc_dependencies()
 # rules_proto defines abstract rules for building Protocol Buffers.
 http_archive(
     name = "rules_proto",
-    sha256 = "5d4cd6780634eb2ecafa091df8be8009d395f70a02f722e07e063883dd8af861",
-    strip_prefix = "rules_proto-493169c1199dc21b9da860f7040a4502aa174676",
+    sha256 = "36e4de702036d31b649f96519676509c4027dc10cc3c97f0335c199b305d45b7",
+    strip_prefix = "rules_proto-8aa1e67c09bc8df20df33886909d44129cfb7e63",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_proto/archive/493169c1199dc21b9da860f7040a4502aa174676.tar.gz",
-        "https://github.com/bazelbuild/rules_proto/archive/493169c1199dc21b9da860f7040a4502aa174676.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_proto/archive/8aa1e67c09bc8df20df33886909d44129cfb7e63.tar.gz",
+        "https://github.com/bazelbuild/rules_proto/archive/8aa1e67c09bc8df20df33886909d44129cfb7e63.tar.gz",
     ],
 )
 load("@rules_proto//proto:repositories.bzl", "rules_proto_dependencies", "rules_proto_toolchains")
@@ -65,9 +65,9 @@ rules_proto_toolchains()
 
 http_archive(
     name = "emsdk",
-    sha256 = "d55e3c73fc4f8d1fecb7aabe548de86bdb55080fe6b12ce593d63b8bade54567",
-    strip_prefix = "emsdk-3891e7b04bf8cbb3bc62758e9c575ae096a9a518/bazel",
-    url = "https://github.com/emscripten-core/emsdk/archive/3891e7b04bf8cbb3bc62758e9c575ae096a9a518.tar.gz",
+    sha256 = "05bad056df1286f920c675504787510434ae8b1b2d83746e0a9b0589429dbe55",
+    strip_prefix = "emsdk-9b0db91883452051aca8deddc932363aab29060b/bazel",
+    url = "https://github.com/emscripten-core/emsdk/archive/9b0db91883452051aca8deddc932363aab29060b.tar.gz",
 )
 
 load("@emsdk//:deps.bzl", emsdk_deps = "deps")
@@ -78,9 +78,9 @@ emsdk_emscripten_deps(emscripten_version = "2.0.31")
 
 http_archive(
     name = "com_google_javascript_closure_library",
-    sha256 = "6ccf6c1bf10173275394fb1dfd98cbbd54251dc3e9dfa09b872b872e4ed7e6c4",
-    strip_prefix = "closure-library-f94055af5ac46eecabe937c1cb3360fb5e4659f3",
-    urls = ["https://github.com/google/closure-library/archive/f94055af5ac46eecabe937c1cb3360fb5e4659f3.tar.gz"],
+    sha256 = "d0935e88b306fcaa37ac99031ce8a19b18e27396603eeb8f984233203768a406",
+    strip_prefix = "closure-library-e896a74c48695b2bfe0f586f13870c0bc50ce99e",
+    urls = ["https://github.com/google/closure-library/archive/e896a74c48695b2bfe0f586f13870c0bc50ce99e.tar.gz"],
 )
 
 http_archive(